An unfortunate phenomenon in which people degrade or mock a woman because she enjoys having sex, has sex a lot, or may even just be rumored to participate in sexual activity. Often it's accompanied by urban legends such as the common virgin misconception that the vagina becomes larger or looser with use-- in fact, sex has no effect on vaginal size.

However, since most people would rather women be MORE sexually active than less, slut shaming is counterproductive to the aims of most men and quite a few ladies.

Guy 1: Ha ha Megan had sex with two guys, she's such a SLUT!

Guy 2: You idiot, do you want her to stop having sex? We should be encouraging this. Your slut shaming will simply discourage more women from sleeping with us and we will be virgins forever.

(V;): to shame someone, male or female, for sleeping around indescriminantly with anyone and everyone they can, often without even knowing the persons name.

Many neo-feminists and radical feminist who have no concept of true feminism use the term incorrectly to attempt to call out anyone who makes a statement about their feelings on sluts, or for making statements such as "if she's been with 5 guys since Wednesday and it's only Saturday, she's not girlfriend material."

Much of what is pegged as slut shaming is nothing more than someone saying "sleeping around a lot is pretty disgusting and dangerous."

Dana: Jenna has been bringing guys from the bar back to our dorm all week, and most of them don't even know her name. It's sad and disgusting.
Radical NeoFeminist: HOW DARE YOU SAY THAT SHES A PROUD WOMYN AND HAS A RIGHT TO HAVE SEX WITH WHOMEVER SHE WANTS WHEN SHE WANTS STOP SLUT SHAMING

Insulting a woman for having sex. Not to be confused with insulting a woman for cheating. Also not to be confused with a man sleeping around (in which case the same people as the ones that use the word slutshame will call him a pig)

Where it's wrong to call a girl a skank for showing off her tits, ass, and camel toe in public; but a man is automatically pervert, a creep, or a potential rapist for getting a public erection after being aroused by previously mentioned skank.

Bro 1: Dude, did you see that girls ass hanging out?

Bro 2: Yeah dude, did you see her tits popping out in that low cut shirt?